156783460680 has 480 divisors, whose sum is σ = 661986198720. Its totient is φ = 32577811200.

The previous prime is 156783460651. The next prime is 156783460681. The reversal of 156783460680 is 86064387651.

156783460680 is a `hidden beast` number, since 1 + 56 + 78 + 3 + 460 + 68 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (156783460681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 2715715 + ... + 2772845.

It is an arithmetic number, because the mean of its divisors is an integer number (1379137914).

Almost surely, 2^156783460680 is an apocalyptic number.

156783460680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 156783460680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (330993099360).

156783460680 is an abundant number, since it is smaller than the sum of its proper divisors (505202738040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

156783460680 is a wasteful number, since it uses less digits than its factorization.

156783460680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57183 (or 57159 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 156783460680 in words is "one hundred fifty-six billion, seven hundred eighty-three million, four hundred sixty thousand, six hundred eighty".